机译：There are generally two types of public libraries rating systems:rating ranking and compliance ratings.In the United States,the ranking of public libraries are usually organized by independent research institutes or academic organizations such as the Hennen’s American Public Library Ratings(HAPLR)system and the American Star Libraries(LJ Index);while the compliance ratings is mainly based on the state public library standards and is checked by the public libraries themselves as an important basis for its planned development and for its support from the federal or state governments and other social organizations.
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